Edge setting machine



Pda., 2L W39. O L. LAWSON MVU@ EDGE SETTTNG MACHNE Filed Nov. 9, 1956 5 Sheets-Sheet l .EFQM 2L 1939.

o, l., LAM/som @Mm EDGE SETTING MACHINE Filed Nov. 9, 195e 5 Sheets-Sheet 2 @WFS Feb. 2L 1939. ol l.. LAWSON 2,147,708

EDGE SETTTNG MACHINE Fil'ed NOV. 9, 1956 5 Sheets-Sheet 5 @Mfg www 211, wm. r O, L LAWSON 2,147,798

EDGE SETTTNG MACHINE Filed Nov. 9, 1936 5 Sheets-Sheet 4 *"51 m 5% VL 05cm Luwso w f w @KYB FQ. 2L 193. o, L. LAWSON 21,147,708

EDGE SETTING MACHINE Filed Nov. 9, 193e '5 sheets-sheet 5 vm nl Patented Feb. 2l, 1939 UNITED- sTA'rEs PATENT oFllcE i i anca samenmomn i Oscar L. Lawson, L

m tional Iz'velopment Oo.

sachuse Mass., signor to Naa corporation o! Maa- Applicatlon November 9, y1936, Serial No. 109,892

momma. (ci. lz-u) My Iinvention relates to edge setting machines, and particularly machines of this character that are employed i'or setting the edges of a sole, which is usually attached to the boot or shoe.

5 'I'he operation of setting the edge of a sole consists in finishing and polishing the raw edges of the given sole which has been previously inked and waxed, the setting tool of suitable configuration beingin such relation' to the sole edge as to produce the required results when the iron and shoe are relatively manipulated'.

In machines of this character now in common use, the setting tool or iron as it is called, is operated in a vibratory manner, with the result that the sole edge is set with a wavy edge, necessitat? ing a subsequent operation either by hand or by' means of a rotary brush to leave a smooth iinish.

The operators of such machines are frequently aiilicted with stomach and kidney troubles, attributable to the constant vibration of the machines.

In my machine the setting iron is'substantially stationary during the settingoperation, only sufeient yielding means being employed to allow a uniform pressure on the entire periphery operated upon, and the operation is in a continuous stroke over the entire edge of the sole, leaving a smooth finished edge that requires no further iinishing operation, and without detrimental effect on the operator.

One object of my invention is to provide a machine of the above character that shall set and nish a sole edge at a single operation by means of continuous strokes over the entire edge operated upon.

A second object is to increase the speed of production by eliminating a second operation to `secure a nished smooth edge.

A further object is to provide a machine of this character in which the sole edge is presented to the iron in a relative position at all times during the operation, and a uniform pressure is maintained.

vA further object is to reduce the vibration oi a machine of this character to a minimum.

Another object is to provide a machine of this character with adjustable means for governing the Anumber of strokes over the shoe sole edge according to the particular sole operated upon. Other objects will hereinafter appear, including adjustable means for adapting the machine to operate on avariety of sizes and shapes of sole, automatic starting and stopping, continui5 ous operation of the driving mechanism, and

emergency stopping, all controlled by a hand lever.

My invention consists in the novel combination o elements and mechanism by means of which the foregoing objects are accomplished and in 5 the method employed in setting the sole edge by means of continuous strokes of the iron over the-periphery of the sole edge operated upon.

A machine for accomplishing the objects o1 my invention, includes an edge setting iron; a 10 jack having a work holder, with means for prey the edge of a sole, with suitable adjustments according to the particular sole operated upon; l5 power operated means for oscillating the jack and Work holder to maintain a uniform pressure of the iron on the sole edge during the edging operation, and throughout the strokes; means for varying the amplitude of oscillation of the` jack, 2() and means for varying the number ofstrokevs" acccording to the needs o1 the particular sole operated upon; means for interrupting the oscillation of the jack and work holder after the required number of oscillations have been made, 25 predetermined by suitable adjustments, permitting change of work; means for withdrawing the setting iron and returning it to position when the work is changed, and the operation automatically resumed; means for controlling the 30 pressure applied by the iron to the sole edge, and' for supporting the iron in such manner that a portion of the pressure is transmitted to the sole surface adjacent to the sole edge, thus preventing pouting. 35 In the accompanying specification and claims and the drawings forming a part thereof, I have described and illustrated a preferred embodiment of my invention, but do not confine myself to `the particular embodiment as modifications may 40 Fig. 5 is a plan of the machine.V

Fig. 6 is a sectional plan on line 4 8, Fig. 1, showing the driving mechanism.

Fig. 7 is a section on line 1-1, Fig. 8, showing in elevation, the cams for controlling the oscillation of the jack.

Fig. 8 is a plan of scale.

Fig. 9 is an enlarged elevation of a portion of the jack and setting iron and contiguous parts, sectioned on line .-4, Fig. l;

Fig. 10 is a plan of the same.

Fig. 11 is an enlarged section on I I-i I, Fig. 12, of the connection between the jack and the sole supporting plate.

Pig. 12 is a plan of same sectioned on line I2- I2. Fig. 1l.

Fig. 12A is a sectional plan of the iron carrier and socket.

Fig. 13 is a plan showing position of parts at the beginning of an edging operation, the iron being shown but contiguous connections being omitted.

Fig. 14 is a fragment partly in section showing position of iron relative to sole edge at the end of an edging operation, and during the interruption of oscillation of the jack.

Fig. 15 shows a fragmentary plan of the controlling means for interrupting the oscillations of the jack shown at the end of an operation.

In the drawings, I is a supporting frame on which is secured the bed 2, on which are mounted the jack 3, the edging iron 4 and coordinating mechanism by means of which the edging operation is performed, suitable connections being made to a driving shaft 5, driven by the belt 5 from a source of power here shown as the motor 1 supported on a bracket 8 secured to one leg 9 of the frame I.

Referring to Figs. 1, 5, and 6, the belt 5 from the motor engages the cone pulley I0, journaled on the shaft 5, the cone operating to rotate the shaft 5 through the medium of the clutch member II, operated manually or automatically as will be hereinafter described.

The clutch member II is slidable axially of the shaft on the feather I5 seated in the shaft 5, the spring I4 reacting on the collar I5 rigid with the shaft, to exert a yielding pressure on the clutch member, to engage the cone pulley when the clutch lever I6 is operated to permit, the axial movement of the cone pulley on the shaft being limited in one direction by the shaft bearing I1, and in the other by a shoulder I8 formed on the shaft, or by other suitable means. The shaft 5 is iournaled in the hangers I1 and I9, depending from the bed 2, and secured to the shaft is the worm 2I| meshing with a worm wheel 2| secured to the shaft 22 journaled in a hanger 23 (Fig. 3) and extending upwardly through the' bed 2. To this shaft is secured the cam 24 operating through suitable connections on the stopping and starting means as will be hereinafter explained. Also near the upper end of the shaft is secured a cam 25 and a companion cam 26 rotatably mounted and featured in Figs. '7 and 8, these cams operating cooperatively to actuate the mechanism for interrupting the oscillations of the jack and for withdrawing the iron from working position, all of which will hereinafter be described in connection with respective mechanisms. Secured to the inner end of the shaft 5 is a bevel pinion 21, meshing with the gear 28 secured to the shaft 29 jour naied in the bracket 30, depending from the bed 2 and the shaft extending through the bed (Figs. 1, 2, 5 and 13). Secured to a projecting end is the same, both on enlarged anarco the crank I I, slotted at $2. Adjustable in this slot radially with the axis of the shaft, is the stud Il secured in adjusted position by a hand nut 34, the adiustingvmeans including the screw 25 rotatable axially with the slot and tapped in the stud oper- 5 ating to closely adjust the throw of the stud when the shaft is rotated. Journaled on this stud is one end of a .pitman adjustable in length by means of the screw connection 38 opposite ends of which engage in the pitman elements 31, 38 the threads 10 of the screw being respectively right and left, the enlarged disc 38 facilitating the manipulation of the screw element to adjust the length of the pitman.

The other end of the pitman is swivelled at 4B in the fork 4I, (Figs. 1, 2, 13 and 15) of the arm 42, journaled on the upper end of the stud 43, projecting upwardly from the bed 2. Journaled on this stud below the arm, is a segment 44, meshing with the pinion 45, secured to the hub 46 of the jack 3, the combination being rotatable on the upwardly extending stud 41 from the bed 2, ball bearings 48, beingprovided as particularly shown in Fig. 14. Referring to Figs. 13 and 2A, slidable in the upper face of segment 44 is a bolt |50 adapted to engage an abutment I5I on the arm 42, a lug I5IA projecting upwardly from the segment to engage the other side of the arm 42, the bolt and lug operating to lock the segment to the arm, when bolt is engaged, to the end that the segment will be swung when the arm is actuated from the slotted crank. At the end of an edging operation,- the bolt is withdrawn by means presently to be described, and the arm continuesl to oscillate, the segment remaining at rest while the nished sole is replaced by one to be operated upon, the bolt automatically engaging the abutment on the arm for a succeeding operation as will appear.

As the crank is in continuous rotation under normal operation of the machine, the segment when locked to the arm 42 is swung and operates to oscillate the jack through a predetermined arc according to the radial adjustment of the stud 34 in its slot.

Rigid with the upper end of the stud 41, Fig. 1 and particularly Figs. 2, 9 and 10 is the pinion 50. The jack 3 is extended at its upper end in the form of a platen 5I, studs 52 projecting upwardly therefrom on opposite sides of the pinion 50 and on a line intersecting its axis. On these studs are journaled like pinions 53, 54 meshing with the pinion 50.

These pinions are channeled on their upper faces and engaging respective channels are the adjustable elements 55, Figs. 9, 11 and 12, provided with flanges 56 slotted at 51, through which extend the screws 58, securing them to respective pinions in adjusted position. Projecting upwardly from each of the elements 55 is a stud rigid c( with the respective element, and adapted to journal in the shoe supporting plate 60. The median lines of the channels in the pinions intersect the axis of rotation of the pinions; as they are rotated by engagement with the pinion 50 when the e.

jack is oscillated by the means described, the studs 59, offset in the elements 55 from the axis of rotation, and engaging the supporting plate 50, operate thereon to oscillate the plate relative to the oscillation of the jack, compensating by 7 such oscillation for the variation in distance from the toe and either side of the sole edge from the axis of oscillation of the jack, the movement of the setting iron being limited in action to yieldingly operate on the sole edge with uniform pres- 1 the locking bolt is engaged,

` socket inv a manner in which it sure throughout the about the periphery oscillationv of the sole and thereof. 'I'he supporting plate is provided with pads on which a shoe is supported, Figs. 1 and 9, and integral with the supporting plate 60 is an upright 62 on which is mounted the means for clamping the shoe in operative position relative to the edging iron. I have shown one such means in which a hand lever 63 is pivoted axially with a ratchet 64, a pawl 85 pivoted to the lever engaging the ratchet teeth and being releasable by means of the latch 38 and link 81. Pivoted eccentrically with the lever pivot is one end of a pitman the other end being pivoted to the plunger 89 slidable radially with the axis of the ratchet, in guides 10 on the upright, Fig. 1.

The toe of the shoe may be secured in operative position by any suitable means, here shown as the lever 1| hinged to the upright at 12, the end 13 being formed to clamp the toe of the shoe without marring,` the extension 14 permitting release against the yielding tension of the spring 15. When the operation for setting the edge is about to start, theshank of the sole edge is in engagement with the iron as shown in Fig. 13, and when the jack and supcontinuous strokes edge to be set, the

ported shoe are oscillated in between extremes of the sole iron bearing on the sole edge with uniform pressure throughout each stroke. This iron is formed with a flange, Figs. 1 and 9, projecting beyond the edge setting surface, and is adapted to bear upwardly and angularly on the sole'surface contiguous to the edge of the sole, to prevent pouting. The edge setting iron 4 is secured to a carrier element 80, Figs. 9, 10, and 12A, being removably secured in a socket 8|, integral with the segment 82, meshing with the worm 83 rotatable in bearings 84 in the holder 85 the holder being formed with the housing 86, the holder being pivoted at 88 to the supporting bar 39, swivelled at 90 to the lever 9| journaled on the stud 92, Figs. l and 14. This stud is mounted in a bracket 93 rigid with the bed 2. Any suitable means may be employed for securing the carrier element in its may be replaced with facility or removed without the use of tools, and I have shown such a means including the spring 81, secured in the socket 8| and operating as a pawl to engage with a notch 81A formed in the carrier and adapted to limit the insertion but providing for withdrawing from the socket (Fig. 12A). The supporting bar hereinafter designated, as the support 89, is adapted to reciprocate on roll 94 rotatably mounted on the lever 95 swivelled at 95 to the bracket 91 rigidly mounted on the bed 2, rolls 98, 99 engaging opposite sides .of the support and rotatable respectively on studs projecting from said bracket and from the stand rigid with the bracket 91. I'he relation of the pressure of the iron on the sole edge and contiguous sole surface is controlled as follows: The angular relation of the holder 85 and the support 89 is adjustable on the pivot 88, through the medium of adjusting screw |02 tapped into the support 09 and limiting the downward swing of the setting iron mounted as described, the screw |03 tapped in the support 85 and bearing in a socket formed in the support 09 and surrounded by the spring |04 exerting a tension yieldingly on the holder in the opposite direction and against the shoulder |05 of the screw |02.

An adjustment screw |05 tapped in the boss |01 on the bracket 91, operates on an extension |03 of the lever 95 to vary the height of the roll 94,

and thus through the connections described. the relation of the edge setting iron to the edge ol' the sole, upwardly. The edge setting iron is held under a yielding pressure against the edge ol' the sole by means of the spring |09, one end of which hooks into the eye |09A formed in the lever 9| and the other end to the arm I0 adjustably swiv-V elled to the bracket 91, to vary the tension exerted on the iron against the sole edge.

When a sole to be operated upon is clamped in operative position, the edge setting iron is in withdrawn position as shown in Fig. 14, and the sole is so positioned on the support mounted on the jack, that the iron' will engage the left edge at the shank when the operation is started. 'Ihe iron is shown in operative position at the commencement of the stroke, Fig. 13. The crank 3| is normally in constant rotation during a run on a lot of shoes, in the direction of the arrow, the arm 42 oscillating between extremes as shown in Fig. 15, being locked to the segment as hereinbefore described, during an edging operation on a single sole, the locking bo1t being withdrawn at the end of such operation, leaving the shoe in the original position as in Fig. 13.

The control of the locking bolt, the withdrawal of the iron and automatic stopping of the machine if so desired, of the cams on shaft 22. Therotation of this shaft relative to the shaft 29 and the crank 3|, is predetermined when the machine is constructed, and in this embodiment the crank is rotated ten times to one complete rotation of the cam shaft 22.

Referring to Figs. 5, 6 and 13, the crank 3| and the cams 25, 26 are rotated relatively, the former by means of the pinion 21, rigid with the shaft 5, meshing with the bevel gear 29 rigid with the shaft 29. The worm also rigid with the shaft 5 engages the worm wheel rigid with the cam shaft 22. 'I'he shafts 22 and 29 are therefore in eonstant rotation at relative speed during the time that the clutch member is engaged with the cone I0 and the motor is in operation. Returning to the cam shaft 22, the cams 25, 26, featured in Figs. 7 and 8, are alike in contour, the former being rigid with the shaft 22, and the latter rotatable relatively. It is:assumed that the maximum number of oscillations of the jack and sole supporting plate, to complete any edging operation on a shoe sole, will not exceed, in this embodiment, five complete oscillations. The cams and cam shaft will therefore move one tenth of a revolution at each complete revolution of the crank shaft and crank, or one complete oscillation of the jack and sole supporting plate and between extremes of contact of the iron with the sole edge acted upon. Both cams are formed with a rise which operates as will presently be described, to interrupt the oscillations and the edging operation at the end of the ifth complete oscillation, permitting the replacement of the sole by another to be operated upon, and Without disengaging lthe, clutch member and stopping the whole machine. In order that the number of oscillations may be reduced where it is advisable, mea-ns are provided for securing the cams together angularly disposed to reduce the number of oscillations as may be required, and here shown by means of the plunger IIB slidable in the socket ||1 secured in the cam 26, the plunger being adapted to engage perforations in the contiguous face of the cam 25, disposed one tenth of a revolution apart. The cam 26 rotatable relatively in either direction may thus be set cooperatively with the cam to reduce the number of oscillaare governed by the rotation Aoriginal position tions by one or more, the interrupting means engazing the advanced rise on'the cam 23 as at |20', Fig. 8, before engaging the corresponding rise |20 on cam 25. When the edging operation on a shoe sole starts, as the jack is rotated, the pinions 53, 54 are rotated on their respective studs by the rolling action of the pinions on the xed pinion 50, and the studs 59 engaging the sole supporting plate operate eccentrically with the axes of respective pinions to move the sole supporting plate sidewise as the oscillation of the jack proceeds, in a compensating movement to retain the edge of the sole in uniform pressure contact with the edging iron. When the required number of oscillations have been made the rise in the cams 25, operate in the following manner to interrupt the oscillations and withdraw the iron from the work. Normally the rotation of the crank and the cam shaft with the cams is continued but as hereinafter explained, the machine itself may be automatically stopped at this time if desired without stopping the motor.

Pivoted at I2I on a stud projecting upwardly from the bed 2, Figs. 2, 5 and 13, is a lever |22 in which is rotatably mound a roll |23 engaging the periphery of the cams 25, 28. To an extension of this lever is swiveled at |24, one end of the pitman |25, adjustable in length in similar manner to the described pitman 31, 30, the other end being swiveled at to the lever 9|, Figs. 1 and 14. Also swiveled to the lever at |21, Figs. 5, 13 and 15, is another pitman |20 swiveled at its other end to one arm |29 of a lever pivoted at on the bed 2, the other end being formed at |3| to engage the roll |32 journalled on an extension of the locking bolt |50. The rises |20, |20' are timed to operate on these connections as the sole is returned to original position at the start of the edging, operation, the action being to swing the lever |22 which operates through the pitman |25 to swing the lever 9| and thus withdraw the setting iron, simultaneously operating the lever |29 to withdraw the bolt |50 thus releasing the segment 44 from the arm 42, which continues. to osclllate leaving the segment at rest.

The sole with finished edge is replaced and as the cams 25, 26 continue their rotation, the roll |23 engaging the cams permits the lever to resume at the end of a complete revolution of the cams, the setting iron engaging the edge of the sole and the bolt engaging the arm and locking the segment therewith for a su'cceeding edging operation. For starting and stopping the rotation of the cam and crank shafts, I provide means by which the clutch member may be withdrawn from the cone automatically after an edging operation is completed, or the rotation of the shafts may be continued at will, the clutch member being controlled in functioning by means which I will now describe.

Referring particularly to Figs.,3 and 4, the

hand lever is primarily for the purpose of starting and stopping the rotation of the shaft 5 at the beginning and end of a run. This lever is rigid with one end of the shaft |30 journaled in the bed 2 and the hub |31 in the bracket |38 secured to the bed. The lower end of this shaft is formed with a collar |39 from which projects downwardly a stud |40 the axis of which is offset from the axis of the shaft |35. On this stud is journaled a lever |4 I near the outer end of which is rotatably mounted the roll |42 engaging the cam 24 rigid with the cam shaft 22. Integral with the bracket |30 is a fork in the ears of which |44, the shaft |45 is rigidly mounted, and on which is journaled the clutch lever I5, having swiveled elements |41 adapted to engage the clutch element II.l Integral with this clutch lever is an arm |49 in the end of which is-tapped a set screw |49 adapted to engage the side of the lever I4I. In the position shown in Fig. 4 the parts are in position in which the clutch element is engaged with the cone.

The'rise |55 on the cam 24 is so positioned angularly on the cam shaft 22, that the lever I4| swinging on its stud |40, will operate through the medium of the set screw |49, and the arm |48 which is integral with the clutch lever I8, to withdraw the clutch member from the cone I0, stopping the rotation of the shaft 5 and connected shafts, when the hand lever is in the position shown. If it is desirable on emergency to stop the action during the progress of an operation, by moving the hand lever in the direction indicated by the arrow |50.A (Fig. 4), the rotation of the shaft 5 is stopped by the same mechanism, the roll |42 becoming a fulcrum in connection with the periphery of the cam 24, the rotation of the stud |40 eccentric with the axis of the shaft |96 operating on the lever |4I to swing, through the set screw |49, the lever I4| and the clutch lever I6 to disconnect the clutch member II.

Under normal conditions of operation however, it is not necessary to stop the machine after each operation, as the edging operations are interrupted a sufficient length of time to replace the work.

In practice, when the clutch member II is engaged to start the machine, the hand lever is swung to the position indicated in broken line at |51 and the lever |4| is separated sufciently from the set screw |49, to allow the cam |43 to swing the lever without engaging the set screw at any time, thus leaving the shafts to continue rotation with the jack and supporting plate at rest during the interruption controlled by the cams 25, 29.

In the foregoing specification, I have described the method and the operation of setting the edge of a sole, and while the sole is usually attached to the shoe, the same method and operation is applicable to a sole unattached, the sole being supported and secured in a similar manner in operative relation to the setting iron, either in connection with a last or otherwise according to conditions in the particular case.

When a run of soles of one size and pattern is to be made, adjustments are made as follows: with a sample supported and secured in operative position, the pitman |25 is adjusted in length to secure the required pressure of the iron on the sole edge, lengthening or shortening the pitman by means of the adjustment dise, Fig. 1. Referring to Fig. 5, as the pitman |25 connects the levers 9| and |22, the length is so adjusted that when the sole to be operated upon is in position, the iron will engage the sole edge and the roll |23 will be olea'. of the minor portion of the periphery of the cams 25, 26, the spring |09 exerting a yielding tension onthe lever 9| to press the iron 4 against the sole edge, the arm ||0 being adjusted rotatively to insure the required tension to be exerted and the angle of incidence of the iron with the sole edge is adjusted by means of the segment 82 and worm 83, and the upward pressure on the sole surface adjacent to the edge by means of the screw |00, Fig. 9. The amplitude of the oscillations of the jack is adjusted by means of the hand screw 35, operating the stud 33 in the crank slot 3|, Fig. 5. The pitman 31-30 is lengthened or shortened by means of the disc 39 to swing the jack to a greater or less extent on one side or the other of a median line through the iron and the toe and heel of the sole, to operate respectively on a right or left sole.

The number of oscillations required for edging the particular sole is determined and the cams 25, 26 are adjusted relatively', Figs. 7 and 8, and the amplitude of the transverse oscillation of the supporting plate relative to the jack, is governed' by adjusting the elements 56 in the chan-nels of respective pinions 53, 54, to vary the oiset of the studs 59 in distance from the axes of the respective pinions, to insure uniform pressure on the sole edge by the iron, throughout the oscillations. During these adjustments the hand lever |35 is operated to engage and disengage the clutch member Il, but when cycles throughout the run on the particular lot.

Having thus described my invention, I claim:

l. A machine for setting the edge of a sole, including an edge setting iron; a jack rotatable in operative relation thereto on a fixed axis; means mounted on the jack for supporting and holding a sole and presenting the edge thereof to said iron; means for oscillating the jack and holding and supporting means about said axis; and means for oscillating the holding and supporting means transversely relative to the jack and normal to the axis of rotation thereof.

2. In a machine of claim 1, means for varying the amplitude of the transverse oscillation of the supporting'and holding means.

3. In a machine of the character described in claim 1, means for adjusting the amplitude of the oscillation of thejack.

4. In a machine of the character described in claim 1, means for adjusting the amplitude of the oscillation of the jack: and means for adjusting the amplitude of oscillation of the supporting means relative to the jack.

5. A machine of the character described in claim 1, having means for automatically interrupting the oscillation of the jack and holding and supporting means periodically; and means for relatively moving said iron and jack to withdraw said iron from the work when said oscillation is interrupted, and returning to original position when the oscillation is resumed.

6. A machine of the A character described in claim l, having means for automatically interrupting such oscillation relatively moving said iron, jack and supporting means to Withdraw said iron from the Work when said oscillation is interrupted and return to original position when the oscillation is resumed; and means for varying the amplitude of such oscilla tion.

' 7.j In a machine of `the character described in claim l, means for automatically pressing the iron yieldingly against the edge sole face throughout its travel about the periphery thereof.

8. In a machine of the character described in claim 1, means for oscillating the iron relative to the jack and the supporting means. I

9. In a machine for setting the edge of a sole, having an edge setting iron, a. jack having means for supporting and holding a sole and presenting the edge of the sole to said iron, a carrier for said iron, a holder for said carrier, means acting upon said holder for pressing the iron against the edge of the sole, and means for transmitting a part of said pressure against the sole surface the run is started. it is the character described in pinion; a second pinion rigid with the jack and periodically: means for adjacent to the sole edge. in combination therethe angle of incidence of the iron with the sole edge including a segment rotatably mounted on the holder and integral Vwith the iron carrier; and means for adjusting the seg- 5 ment angularly in the holder.

10. In a machine of the character described in the means for oscillating the jack including a rigidly supported shaft; a pinion secured thereto, the jack being rotatable about said shaft and pinion; a pinion rigid with the jack and concentric with the aforesaid pinion shaft; a segment meshing with the latter pinion and suitably journaled on a rigid stud; an arm journaled to said stud adjacent to the segment; a driving shaft having a crank rigid therewith; a locking bolt movably mounted and adapted to lock the segment and arm together, said locking bolt being releasable to permit free movement of the arm on its journal without action on the segment; connections between the crank and the varm whereby the arm is oscillated; controlling means operated from the main shaft of the machine for periodically releasing and reengaging the arm and segment in coordination with periodic interruption in the oscillation of the jack; and means for rotating the shaft to which the crank is secured, connecting with the main shaft of the machine, to oscillate the arm and segment through a predetermined angle, and thereby oscillate the jack on its shaft.

11. A machine for setting the edge of a sole, including in combination, an edge setting iron; a jack having means for supporting and holding a sole and presenting the edge of the sole to said iron; means for relatively oscillating said iron and jack to cause the iron to travel about the periphery of the sole in a continuous stroke including a rigid shaft, a pinion secured thereto, the jack being rotatable about the shaft and concentric with the aforesaid pinion shaft; a segment meshing with the latter pinion and suitably journaled on a rigid stud; an arm journaled to said stud adjacent to the segment; a driving shaft having -a crank rigid therewith; a locking bolt movably mounted and adapted to lock the arm and segment together, said locking bolt being releasable to permit free movement of the arm on its journal without action on the segment; connections between the crank and arm whereby the arm is oscillated; means for rotating `the crank shaft, connecting with the main shaft of the machine, to oscillate the arm and segment when engaged, through a predetermined angle and thereby voscillate the jack on its shaft; controlling means operated from t e main shaft for periodically releasing and reengaging the arm and segment, such means including a cam shaft rotatable in predetermined ratio to the rotation of the crank shaft such that a series of oscillations will be transmitted to the jack together with a period of interruption of oscillation during each cillation of lease the locking bolt between the arm and the segment. thus interrupting the oscillations of the jack, and through connections operating to withdraw the setting the period of such interruption.

12. In a machine o! the character described in claim 1l. means for adjusting the relative period of interruption and operation including a second cam element of like contour, in rotatable relation with the first cam element; and means for securing the latter in varied angular relation to the other cam and in operative relation to the adjacent fulcrumed lever.

13. A machine of the character described in claim l, in which the holding and supporting means include an element movable transversely of the axis of the jack; means for oscillating said element relative to and in coordination with the oscillation of the jack including a pair of pinions rotatable on studs projecting from the Jack and engaging a nxed pinion axial with the axis of osthe Jack the studs being on a line passing therethrough; a projecting stud from each rotatable pinion engaging rotatably with the holding and supporting element, such studs being eccentric with the respective axes of rotation or the pinions. f

14. A machine of the character described in claim 1, in which the supporting and holding means include an element movable transversely ci the axis of the jack; means for oscillating said element relative to and in coordination with the oscillation of the jack, including a pair of pinions rotatable on studs projecting from the jack and iron from the sole edge duringY Y auw/os engaging a fixed pinion axial with the axis of rotation of the .iacia the studs being on a line passing therethrough; a stud projecting from each rotatable pinion, engaging rotatably with the supporting and holding element, such studs being eccentric with the respective axes oi rotation of the pinions, and each being independently adjustable to vary its degree of eccentricity.

15. In a machine oi' the character described in claim 1 in which the setting iron operates on the sole edge in substantially nxed relation to the axis of rotation ci the jack.

16. In a machine of the character described in claim 1, stopping and starting means, including a hand lever rigid with a shaft rotatable in bearings rigid with the machine; a stud oiIset from the axis of the shaft and rigid therewith; a lever journaled thereon, its opposite end engaging a cam on a shaft rotatable once during each edging operation including a period or interruption of oscillation of the jack; a second lever integral with the clutch lever of the machine, journaled in a rigid bracket, said clutch lever operating to engage a clutch member with a source of power; a set screw adjustable in the outer end of the second lever, adjustable to engage the rst lever, the combination being adapted to provide for starting and stopping the machine at will; at the end of an edging operation; or for permitting the continuous rotation of the clutch and crank shafts. all dependent upon the position to which the hand lever is moved manually.

OSCAR L. LAWSON. 

